Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Leuciscidae
(Minnows) > Pogonichthyinae
Etymology: Luxilus: Latin, luxilus, derived from Lux = light, refered to a small silvery fish (Ref. 45335). More on author: Mitchill.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; depth range - m (Ref. ), usually - m (Ref. ). Temperate; 0°C - 31°C (Ref. 35682); 53°N - 38°N
North America: Atlantic, Great Lakes, Hudson Bay, and Mississippi River basins from Nova Scotia to southeastern Saskatchewan, Canada and south to James River drainage in Virginia, northern Ohio, central Missouri and Colorado, USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm 7.4  range ? - ? cm
Max length : 18.0 cm TL male/unsexed; (Ref. 86798); common length : 8.3 cm TL male/unsexed; (Ref. 12193); max. reported age: 6 years (Ref. 72462)
Inhabits rocky pools near riffles in clear, cool creeks and small to medium rivers. Sometimes occurs in lakes in northern part of range (Ref. 86798). Oviparous (Ref. 205), nest spawners (Ref. 52559). Frequently hybridizes with Luxilus chrysocephalus in areas where the ranges of these two species overlap (Ref. 86798).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
IUCN Red List Status (Ref. 124695)
Threat to humans
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00413 - 0.01752), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 2.8 ±0.2 se; based on diet studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (tm=1; tmax=4).
Vulnerability (Ref. 59153
): Low vulnerability (16 of 100) .